Initial commit: MyMidas personal finance tracker

Full-stack self-hosted finance app with FastAPI backend and React frontend.

Features:
- Accounts, transactions, budgets, investments with GBP base currency
- CSV import with auto-detection for 10 UK bank formats
- ML predictions: spending forecast, net worth projection, Monte Carlo
- 7 selectable themes (Obsidian, Arctic, Midnight, Vault, Terminal, Synthwave, Ledger)
- Receipt/document attachments on transactions (JPEG, PNG, WebP, PDF)
- AES-256-GCM field encryption, RS256 JWT, TOTP 2FA, RLS, audit log
- Encrypted nightly backups + key rotation script
- Mobile-responsive layout with bottom nav

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/schemas/account.py

@@ -0,0 +1,59 @@
+import uuid
+from datetime import datetime
+from decimal import Decimal
+from typing import Literal
+
+from pydantic import BaseModel, Field
+
+AccountType = Literal[
+    "checking", "savings", "cash_isa", "stocks_shares_isa",
+    "credit_card", "investment", "cash", "crypto_wallet",
+    "loan", "mortgage", "pension", "other"
+]
+
+
+class AccountCreate(BaseModel):
+    name: str = Field(..., min_length=1, max_length=100)
+    institution: str | None = None
+    type: AccountType
+    currency: str = Field(default="GBP", min_length=3, max_length=10)
+    credit_limit: Decimal | None = None
+    interest_rate: Decimal | None = None
+    include_in_net_worth: bool = True
+    color: str = Field(default="#6366f1", pattern=r"^#[0-9a-fA-F]{6}$")
+    icon: str | None = None
+    notes: str | None = None
+    opening_balance: Decimal = Field(default=Decimal("0"))
+
+
+class AccountUpdate(BaseModel):
+    name: str | None = Field(default=None, min_length=1, max_length=100)
+    institution: str | None = None
+    opening_balance: Decimal | None = None
+    credit_limit: Decimal | None = None
+    interest_rate: Decimal | None = None
+    include_in_net_worth: bool | None = None
+    is_active: bool | None = None
+    color: str | None = Field(default=None, pattern=r"^#[0-9a-fA-F]{6}$")
+    icon: str | None = None
+    notes: str | None = None
+
+
+class AccountResponse(BaseModel):
+    id: uuid.UUID
+    name: str
+    institution: str | None
+    type: str
+    currency: str
+    current_balance: Decimal
+    credit_limit: Decimal | None
+    interest_rate: Decimal | None
+    is_active: bool
+    include_in_net_worth: bool
+    color: str
+    icon: str | None
+    notes: str | None
+    created_at: datetime
+    updated_at: datetime
+
+    model_config = {"from_attributes": True}